logo
    Increase the part of renewable energy in the primary energy consumption is an interesting resolution to lower CO2 emissions of human activities. Utilization of wood for combustion represents an important contribution for this objective: in France the potential of 9,5MTep for energy is growing with the expansion of forest on the territory. To improve the environmental impact of wood combustion, some advance need to be achieved in term of undesirable emissions of carbon monoxide (CO), volatile organic compounds (VOC), polycyclic aromatic compounds (PAC), and particles. Emissions measurement on an old technology wood stove confirms no negligible emissions rates for CO, VOC and particles. The goal of this project is to create a new technology efficient for both gaseous and solid emissions abatement. This technology will also have to be affordable, compact and self generated to be of interest for consumers. Catalysis science can help to treat gaseous emissions. Some tests on catalyst with high redox properties showed promising results for CO and methane CH4 total oxidation. Experiences on a very simple filtration technique indicate 50% abatement for particles smaller than 2.5µm (PM2.5). Regeneration and optimization of these different techniques are ongoing.
    Stove
    The coal-fired power industry in China is confronted with issues on Nitrogen Oxide (NOx) abatement and corresponding additional costs.The selection of denitration technologies and measures is a scientific, economic, and political issue.Several domestic studies estimate the denitration costs and their influencing factors in the context of Chinese power industry.The influencing factors on denitration cost during operations and manufacturing can be credited to the average total cost of denitration.Denitration technologies and measures can be evaluated based on the unit cost of pollution reduction (UCPR), which can be calculated from the marginal abatement cost function.The UCPR was used to examine the cost-effectiveness of each emission reduction technologies and measures.Our analysis shows that the factors, electricity capacity, denitration technology, and construction measure, play incredible roles in determining denitration cost, whereas selective catalytic reduction denitration technology and technological transformation construction measure are the most favored options as regards denitration practice from power plants in China.Given that the mean value of the UCPR is 1.19 cent/kWh, compared with the 1 cent/kWh subsidy, the national denitration subsidy on electricity price is reasonable.Although the NOx abatement strategies provide beneficial effects, some related measures are needed for their implementation.
    Nitrogen oxides
    Nitrogen oxides
    Citations (1)
    This paper uses the direct-cost estimates for air pollution abatement developed for an earlier study (Miernyk and Sears, 1974) to derive technical coefficients for several simulated abatement activities in West Virginia. Output and relative price effects are calculated for particulate matter abatement and two sulfur dioxide abatement alternatives, using a static input-output model.
    Citations (18)